Do wildcard SSL certificates not support multiple domains?

Generally, a website with only one domain name only needs to apply for a single-domain SSL certificate to implement https encryption. If a website has multiple domain names or multiple subdomains, how to apply for an SSL certificate?Do I need to apply for several SSL certificates?This is not only inconvenient to manage, but also time-consuming and costly.Below, we will introduce the multi-domain SSL certificate, wildcard SSL certificate, and multi-domain wildcard SSL certificate.

Multiple Domain SSL Certificate

Multi-domain certificate allows you to add multiple domain names to be protected in the same certificate.It supports multiple different domain names, which can be the main domain name or sub-domain name, and the domain names can also be unrelated. In general, a multi-domain name certificate supports the protection of 2-3 main domain names by default, and more can be protected.250 domain names, it is much more cost-effective than applying for a single application, and it is much easier to manage.

For example, www.abc.com, www.123.net, mail.aaa.org, aaa123.com can apply for a multi-domain certificate.

Wildcard SSL Certificate

The wildcard certificate can protect multiple subdomains of the same level under one domain name, without limiting the number of subdomains at the same level, and adding new subdomains at this level does not require re-examination and additional payment, saving a lot of time and cost.Wildcard certificates are more suitable for websites with multiple subdomains of the same level under one main domain name.

For example, your domain name looks like this:

Sub1.example.com

Sub2.example.com

Sub3.example.com

Sub4.example.com

You only need to choose a wildcard certificate to issue to *.example.com, while protecting the primary domain and all secondary subdomains.If you need to protect the third-level subdomain, you need to apply for a wildcard SSL certificate for the corresponding second-level subdomain.

Multiple Domain Wildcard SSL Certificate

Multi-domain wildcard SSL certificate can protect multiple different single domain names and an unlimited number of sub-domains. It is an SSL certificate that combines the advantages of wildcard SSL certificate and multi-domain SSL certificate.For example, Baidu has many single domain names and many subdomains of different levels. They use an OV-type multi-domain wildcard SSL certificate from GlobalSign.

In short, multi-domain certificate, wildcard certificate and multi-domain wildcard certificate are all for the convenience of certificate management, saving time and money, how to choose depends on the number of domain names and domain name level of your website.